You can sacrifice Experiment One to pay for Fiend of the Shadows third ability, but you cant do so to activate the ability of Ooze Garden
Withering Hex Withering Hex is a 1-drop enchantment aura that gains a plague counter whenever a player cycles a card
Some, like Conundrum Sphinx and Sphinx Ambassador, play guessing games, an homage to the Greek mythos of the riddle-telling sphinx
Interestingly, inventory actually seems stronger now than it did 18 months ago, which suggests that the most recent spike pulled copies out of binders as folks who had them laying around sought to take advantage
All players will know this information
I also use at least two copies of Acorn Harvest, because it acts as a super Chatter later in the game (preferably after Squirrel Mob is on the table)